Automotive Engine - Market Share Analysis, Industry Trends & Statistics, Growth Forecasts (2026-2031)

The automotive engine market size was valued at USD 83.39 billion in 2025 and estimated to grow from USD 85.17 billion in 2026 to reach USD 95.75 billion by 2031, at a CAGR of 2.37% during the forecast period (2026-2031). This report is Segmented by Placement Type (In-Line, V-Type, W-Type, Boxer/Flat, and Opposed-Piston), Fuel Type (Gasoline, Diesel, and More), Vehicle Type (Passenger Cars, Light Commercial Vehicles, Medium and Heavy Commercial Vehicles, and More), Engine Capacity (Below 1. 5 L, 1. 5-3 L, and Over 3 L), and Geography. Market Forecasts are Provided in Value (USD) and Volume (Units).

Global Automotive Engine Market Trends and Insights

Rising Vehicle Production in Emerging Asia-Pacific Economies

In 2025, India significantly increased its passenger vehicle production, achieving notable growth due to capacity expansions in Gujarat and Tamil Nadu. Meanwhile, China maintained its position as a leading producer of light vehicles, focusing on hybrids and exports, particularly to Southeast Asia, where infrastructure challenges persist. Both Indonesia and Thailand attracted substantial investments in flexible powertrains, solidifying their roles as key hubs in the ASEAN region for gasoline, hybrid, and CNG variants, all manufactured using shared tooling. Leveraging labor-cost advantages, Indian-manufactured engines are being exported to Africa and Latin America at significantly lower prices compared to their European counterparts, ensuring the continued competitiveness of internal combustion engines (ICE). This production growth is driving the automotive engine market forward, even as urban electrification policies become increasingly stringent.

Stricter Global Emission Regulations Driving Internal Combustion Engine Efficiency Upgrades

Euro 7, China VI-b, and the United States Environmental Protection Agency (USEPA) Tier 4 Final standards converge to tighten particulate and NOₓ limits, obliging manufacturers to deploy gasoline particulate filters, on-board diagnostics parity, and low-temperature durability calibrations. The incremental hardware raises per-engine cost by roughly USD 300 yet safeguards regulatory compliance for high-volume passenger cars. Selective catalytic reduction and high-pressure direct injection now permeate compact construction machines as well as light vehicles, expanding supplier addressable markets. Continued tightening propels R&D into lean-burn strategies, variable valve timing, and Miller-cycle adaptations that chase every gram of CO₂ abatement. The upshot is a sustained engineering pipeline that keeps the automotive engine market relevant even as electric vehicles gain share.

Rapid Battery Electric Vehicle Adoption Diverting R&D Budgets

In recent years, global sales of battery electric vehicles (BEVs) have experienced significant growth, capturing a notable share of the light-vehicle market. This shift has prompted automakers to pivot their engineering focus towards battery packs and software architectures. Volkswagen, in a bold move, allocated a substantial budget for electrification initiatives over the next decade. This decision came with a significant reduction in its internal combustion engine (ICE) budget and a consolidation of its combustion families. Meanwhile, General Motors announced it would halt the development of new ICE platforms in the near future, confining its future expenditures to compliance adjustments and mild-hybrid enhancements. In a clear sign of the industry's evolving landscape, Tier-1 suppliers like Bosch made headlines by reducing their power-train workforce. This move underscores a growing consensus: the once-thriving combustion sector is now merely a sustaining technology. As capital investments dwindle, innovation in areas like homogeneous-charge compression ignition and plasma-assisted ignition has slowed, steering the automotive engine industry towards incremental improvements rather than groundbreaking breakthroughs.

Other drivers and restraints analyzed in the detailed report include:

• E-Commerce Logistics Boosting Light Commercial Vehicle Engine Demand
• Emergence of Synthetic E-Fuels Extending the Internal Combustion Engine Lifecycle
• Zero-Emission Urban Zones Curbing Internal Combustion Engine Sales

Segment Analysis

In-line engines controlled 43.36% of the automotive engine market in 2025 by leveraging modular scalability and hybrid compatibility across Toyota’s Dynamic Force and Volkswagen’s EA888 families. Opposed-piston units, although niche, are projected to grow at 2.39% CAGR through 2031 as freight operators validate Achates Power’s two-stroke design, which posts one-third of fuel-economy gains versus conventional diesels and meets EPA 2027 NOₓ rules without selective catalytic reduction.

Ford’s 3.5-liter EcoBoost V6 and GM’s 6.2-liter V8 maintain V-type relevance for towing-oriented pickups, while Subaru’s boxer architecture persists in all-wheel-drive crossovers where a low center of gravity offsets added manufacturing complexity. Regulatory focus on output rather than architecture has encouraged automakers to downsize cylinders yet retain familiar layouts, but the tangible efficiency from opposed-piston trials could swing procurement in long-haul trucking over the forecast window.

Gasoline held 63.31% of the automotive engine market in 2025, but hybrid-ICE powertrains spanning mild, full, and plug-in systems will expand at a 2.47% CAGR to 2031, the fastest among fuel categories. Toyota’s 2.5-liter Dynamic Force Hybrid achieves thermal efficiency, while Stellantis integrates 48-volt systems on 1.5-liter turbo fours across Jeep and Peugeot models.

Diesel’s retreat in European passenger cars contrasts with its endurance in heavy-duty trucks, where fuel density and refueling speed remain decisive. Natural-gas fleets are growing in urban buses as biomethane delivers sustainable lifecycle CO₂ reductions, and Brazil’s flex-fuel engines preserve the low-cost ethanol advantages. Hydrogen-ICE pilots showcased 300 horsepower outputs in 2025 endurance racing, illustrating a zero-carbon pathway that leverages existing casting and machining assets.

Complete Report Scope:

• By Placement Type
  • In-line
  • V-type
  • W-type
  • Boxer / Flat
  • Opposed-piston
• By Fuel Type
  • Gasoline
  • Diesel
  • Natural Gas / CNG
  • Hybrid-ICE (Mild, Full, Plug-in)
  • Alternative Fuels (Ethanol, LPG, e-Fuels)
  • Hydrogen Internal Combustion Engine (ICE)
• By Vehicle Type
  • Passenger Cars
  • Light Commercial Vehicles
  • Medium and Heavy Commercial Vehicles
  • Two-Wheelers and Powersports
  • Off-road / Agricultural / Construction
• By Engine Capacity
  • Below 1.5 L
  • 1.5 to 3 L
  • Over 3 L
• By Geography
  • North America
    • United States
    • Canada
    • Rest of North America
  • South America
    • Brazil
    • Argentina
    • Rest of South America
  • Europe
    • Germany
    • United Kingdom
    • France
    • Italy
    • Spain
    • Rest of Europe
  • Asia Pacific
    • China
    • India
    • Japan
    • South Korea
    • Rest of Asia Pacific
  • Middle East and Africa
    • United Arab Emirates
    • Saudi Arabia
    • South Africa
    • Turkey
    • Rest of Middle East and Africa

Geography Analysis

Asia Pacific held 38.71% of 2025 global volume and is projected to expand at a 2.45% CAGR through 2031, driven by India’s output surge and ASEAN’s rise as a flexible power-train hub. China remains the world’s largest light-vehicle producer at 26.8 million units, retaining ICE lines for hybrids and exports even as Beijing targets electric vehicle penetration by 2030. Japan’s domestic engine production dipped in 2025 as OEMs shifted capacity to the United States-Mexico-Canada Agreement (USMCA) zones.

In recent years, United States light-vehicle sales have shown strong performance, with internal combustion engine (ICE) vehicles and hybrids dominating the market due to the high demand for full-size trucks that emphasize towing and refueling convenience. Ford’s Kentucky Truck Plant and GM’s Flint Assembly continue to operate at full capacity, producing V6 and V8 engines that comply with EPA Tier 3 standards. In Europe, passenger-car production has experienced a slight decline, influenced by the increasing implementation of urban zero-emission zones. However, Germany’s Salzgitter site has made significant investments to transition towards producing mild-hybrid modules alongside traditional engine units, ensuring job security for thousands of workers.

In South America, the Middle East, and Africa, demand for vehicles remains robust, but the adoption of battery electric vehicles (BEVs) faces challenges due to cost and infrastructure limitations. Brazil has leveraged its competitive advantage in sugarcane ethanol, which is more cost-effective than gasoline, to maintain strong production of flex-fuel vehicles. Meanwhile, Saudi Arabia and the UAE have initiated hydrogen-ICE pilot projects for urban logistics, utilizing their domestic hydrogen production and addressing the thermal challenges associated with lithium-ion batteries in extreme climates. South Africa continues to focus on producing right-hand-drive ICE vehicles for export to sub-Saharan markets, where charging infrastructure is still in its early stages of development.

List of Companies Covered in this Report:

• Toyota Motor Corporation
• Volkswagen AG
• Hyundai Motor Group
• General Motors
• Stellantis N.V.
• Ford Motor Company
• Mercedes-Benz Group AG
• BMW AG
• Honda Motor Co., Ltd.
• Nissan Motor Co., Ltd.
• Cummins Inc.
• Volvo Group
• Tata Motors Limited
• Scania AB
• Caterpillar Inc.

Additional Benefits:

• The market estimate (ME) sheet in Excel format
• 3 months of analyst support